2017 "Walmart will soon have robots roaming the aisles in 50 stores" https://news.ycombinator.com/item?id=15562743 https://news.ycombinator.com/item?id=15562743

2017 "Walmart will soon have robots roaming the aisles in 50 stores" https://news.ycombinator.com/item?id=15562743 https://news.ycombinator.com/item?id=15562743 2020 update "Walmart ends contract with robotics company Bossa Nova" https://news.ycombinator.com/item?id=24973360 https://news.ycombinator.com/item?id=24973360